Oar-lock.



(Applicaion filed Mar. 28, 1901,)

(No Model.)

WITJvEssEs: nv ruw-MR Qw., @Mw/@gu xg AAM Y v UNITED STATES PATENT OFFICE.

. EDWARD F. MCINTYRE, OF LAKE PHALEN, MINNESOTA, ASSIGNOR OF ONE- HALF TO OSCAR ROSLUND, OF ST. PAUL, MINNESOTA.

- oAR-LooK.

SPECIFICATION forming* 139.11'. Of Letters Patent NO. 701,758, dated J' une v3, 1902.

Application led March 23,1901. Serial No. 52,632. (No model.)

To a/ZZ whom it may concern:

Be it known that I, EDWARD F. MGINTYRE,

a citizen of the United States, residing at Lake being had to the accompanying drawings, and

to the figures of reference marked thereon, which form a part of this specification.'

My invention relates to improvements in oar-locks; and the objects of the invention are to provide an oar-lock which cannot accidentally get separated from the boat and which may still be readily removed from the boat, so as to prevent unwarranted use of the boat or stealing of the oar-locks, and to make such oar-lock cheap, simple, and efficient. This object I attain by the novel construction and arrangement of parts illustrated in the accompanying drawings, in which- Figure 1 is a side elevation of my improved oar-lock. Fig. 2 is a top view of the lock with the fork removed and a small portion in section, so as to expose the mechanism within the block. Fig. 3 is a detail-side View of the fork alone.

Referring to the various parts in the draw the round shank or stem 16 of the fork or oarlock proper17, andsaid stem is provided with an annular groove 18, in whichV engages the short arm 20 of a U-shaped wire 21 22 23, of

4which the'long arm 23 forms a push-button guided by the plate 24.

(See Fig. 1.) This wire or key 2l 22 23 is inserted througha suitable opening'25 in the block, which openingV is afterward closed by the screw-held plate 26` and forms a cavity in which is lodged a V-shaped spring 27, by which the wire is normally held with its arm 21 into the groove 1S of the fork.

When it is desired to removethe fork 17 from the block, the operator simply presses on the button 23 against the spring 27, which yields and releases the key from the fork, so that it maybe lifted out.

It will be seen that by my construction a very easily detachableoar-lock is provided vand all its locking mechanism is closed in, so

it cannot be obstructed by snow or ice or be come damaged by other elements or accidents.

What I claim, and desire to secure by Letters Patent, is-

In an oar-lock, thecombination with the block 12 having avertical hole for the shank of the fork or oar-lock proper, of a fork having a shank with an annular recess or groove, said block also having a cavity 25 in one side and aplate 26 secured over the same; the U- shaped wire 21 22 23 having a short arm engaging the groove in the shank of the fork, and a long arm extending horizontally, transversely through and vbeyond the opposite side of the block, where it serves as a push-button to disengage the short arm from the groove, the spring 27 inserted between the bend 21 of the wire and the spring-retaining plate 26, substantially as and for the purpose set forth.

In testimony whereof I alx in 'presence of two witnesses.

EDWARD F. MCIN my signature Witnesses: Y

A. M. CARLsEN, D. E. CARLSEN. 

